Autonomous system
AS151797 CTCSCITECHLIMITED-AS-AP - CTCSCI TECH LIMITED
Unclassified ARIN Content
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9886 | CTCSCI TECH LIMITED | 300 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 4 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 5 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS151797- Registry name
- CTCSCITECHLIMITED-AS-AP
- Registrant
- CTCSCI TECH LIMITED
- Abuse contact
- admin@ctcsci.com
- Registered
- 2023-09-12
- Last changed
- 2023-09-25
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- CTCSCI HONG KONG
- Network type
- Content
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- No
- Website
- https://ctcsci.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 7 authorising AS151797
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 39 naming AS151797
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 454 networks and 1,854 prefixes, as published 2026-11-06. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
1 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.
| Prefix | Advisory | Published |
|---|---|---|
103.77.211.193 | Chinese Government-linked Cyber Threat Actors Combine Automated and Hands-on Hacking Tools to Steal Sensitive Data | 2026-10-08 |
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere